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Home Authors Posts by D. Scott MacKenzie, Ph.D., FASM

D. Scott MacKenzie, Ph.D., FASM

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is a senior research scientist of metallurgy at Houghton International, Inc., a global metalworking fluids supplier based in Valley Forge, Pennsylvania. Go online to www.houghtonintl.com.

NMTP – Pearlite and ferrite

Non-martensitic transformation products: Bainite

Residual stresses from machining

Pack carburizing of steels

Nitriding of steels

Stress relief is a key step in parts manufacturing

Comparison of carburizing methods

Application of cryogenics to improve steel properties

Measuring retained austenite

Viscosity and the viscosity index

A guide to creating a cleaning and washer control plan

Control plan for oil-based quenchants

Selecting a cleaner for prewashing prior to heat treatment

Control plans for polymer quenchants

Quench system design – heating and cooling

Different methods of aqueous polymer concentration control

Transformation of retained austenite

Dimensional changes during tempering

Precipitation hardening stainless steels

Calibration of refractometers for control of polymer quenchants

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